It wasn't until page 3 where HJ finally hit on why he didn't see any difference in the two stoves. We all know that as temps drop, the canisters stoves eventually will not work. HJ tested both stoves below that threshold and concluded the regulator made no difference, which is obvious as no stove can compensate to vaporize the liquid when it is below the bp. However, on page 3 he finally noted exactly what the video showed, that at temps right around freezing, the unregulated stove begins to fail, while the regulated one does not. As the temp decreases more, eventually both stoves will fail (this s what HJ showed). The experiments do not contradict, they are just demonstrating two different results due to two different temps.

The thread you started reminded us that you did the same experiment years ago showing that as the temps drop to close to freezing, the pressurized alky stoves begin to get finicky so a slight modification will allow it to "act normallY at the given temp (freezing). I loaned my cobalt to someone and it was never returned (and never owned a WB), so I don't know if either/both will eventually fail to light/bloom at some low temp threshold. Liquid nitrogen would certainly be below the threshold for almost any stove since its bp is -320F. Liquid CO2 is a little better at -110F.

I do know the FF and the Starlyte have never failed to work even in the lowest temps I could find (minus 22*F).